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Спецификация 33199 изготовлена «Freescale Semiconductor» и имеет функцию, называемую «Automotive ISO 9141 Serial Link Driver». |
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Детали детали
Номер произв | 33199 |
Описание | Automotive ISO 9141 Serial Link Driver |
Производители | Freescale Semiconductor |
логотип |
18 Pages
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Technical Data
Document Number: MC33199
Rev. 4.0, 10/2006
Automotive ISO 9141 Serial Link
Driver
33199
The MC33199 is a serial interface circuit used in diagnostic
applications. It is the interface between the microcontroller and the
special K and L lines of the ISO diagnostic port. The MC33199 has
been designed to meet the «Diagnosis System ISO9141»
specification.
The device has a bi-directional bus K line driver, fully protected
against short circuits and over temperature. It also includes the L line
receiver, used during the wake up sequence in the ISO transmission.
The MC33199 has a unique feature which allow transmission Baud
rate up to 200kBaud.
Features
• Electrically Compatible with Specification “Diagnosis System
ISO9141”
• Transmission speed up to 200kBaud
• Internal Voltage Reference Generator for Line Comparator
Thresholds
• TXD, RXD and LO pins are 5V CMOS Compatible
• High Current Capability of DIA pin (K line)
• Short Circuit Protection for the K Line Input
• Over Temperature Shutdown with Hysteresis
• Large Operating Range of Driver Supply Voltage
• Large Operating Temperature Range
• ESD Protected pins
• Pb-Free Packaging Designated by Suffix Code EF
LIN, ISO-9141 J-1850 PHYSICAL
INTERFACES
D SUFFIX
EF SUFFIX (PB-FREE)
PLASTIC PACKAGE
98ASB42565B
14 PIN SOIC
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33199D
MCZ33199EF/R2
-40°C to 125°C
14 SOIC
VDD
VDD
33199
VCC
VS
VBAT
I/O
MCU
SCIRXD
SCITXD
LO
RXD
TXD
L
I1
DIA
GND
ISO L-LINE
ISO K-LINE
(BUS)
Figure 1. Simplified Application Diagram
Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as
may be required, to permit improvements in the design of its products.
© Freescale Semiconductor, Inc., 2006. All rights reserved.
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INTERNAL BLOCK DIAGRAM
REF-OUT
LO
REF-IN-L
REF-IN-K
RXD
TXD
INTERNAL BLOCK DIAGRAM
VCC 33199
VS
Reference
Generator
+
C2
–
Protection
I1
Source
VCC
–
C1
+
Driver
Thermal
Shutdown
Current
Limit
L
I1
DIA
GND
Figure 2. 33199 Simplified Internal Block Diagram
33199
2
Analog Integrated Circuit Device Data
Freescale Semiconductor
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PIN CONNECTIONS
PIN CONNECTIONS
33199
VCC
1
14 REF-OUT
REF-IN-L
2
13 VS
REF-IN-K
3
12 L
LO 4
11 I1
RXD
5
10 GND
TXD
6
9 DIA
NC 7
8 NC
Figure 3. 33199 Pin Connections
Table 1. Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section, beginning on page 12.
Pin Number
Pin Name
Definition
1
VCC
5V typical power supply pin. typical supply current is less than 1.5mA
2
REF-IN-L
Input reference for C2 comparator.
3
REF-IN-K
Input reference for C1 comparator.
4 LO This pin control Sleep Mode, Transmit Level, and Speed. It has a weak pulldown.
5
RXD
Open drain output of the data on BUS. A recessive bus = a logic [1], a dominant bus = logic [0]. An
external pullup is required.
6
TXD
Data input here will appear on the BUS pin. A logic [0] will assert the bus, a logic [1] will make the bus
go to the recessive state.
7, 8 NC No internal connection to these pins.
9 DIA Provides a battery-level logic signal.
10
GND
Electrical Common Ground and Heat removal. A good thermal path will also reduce the die
temperature.
11 I1 Power input. An external diode is needed for reverse battery protection.
12 L The external bus load resistor connects here to prevent bus pullup in the event of loss of module
ground.
13 VS This pin connects to the bus through external components.
14
REF-OUT
Internal reference voltage generator output pin.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33199
3
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